Compile error. Unable convert form nullptr to nullptr&&

I can not compile json.hpp.

error C2664: "BasicJsonType *nlohmann::detail::json_sax_dom_parser::handle_value(Value &&)": невозможно преобразовать аргумент 1 из "nullptr" в "nullptr &&"

problem code:

    bool null() override
    {
        handle_value(nullptr); 
        return true;
    }

What code do you try to compile? Which compiler are you using? What version of the library are you using?

visual studio 2015 (vc140). library downloaded from develop branch (last version)

#include <nlohmann/json.hpp> // single include

using namespace std;

using json = nlohmann::json;

int main( void )
{
	json j = "{ \"happy\": true, \"pi\": 3.141 }"_json;
	return 0;
}

Is that compiler supported? From the README: Microsoft Visual C++ 2015 / Build Tools 14.0.25123.0 (and possibly later)

Microsoft Visual Studio Enterprise 2015
Версия 14.0.25431.01 Update 3
Microsoft .NET Framework
Версия 4.7.03056

Could you try to remove using namespace std?

Nothing has changed

That is strange as we use MSVC 2015 with AppVeyor in your CI suite.

Can any macro be defined? Or any compilation option? Can you sln the file?

Maybe related: #987.

Can any macro be defined? Or any compilation option? Can you sln the file?

What do you mean by that?

@kirill-782

@kirill-782 Could you comment on #1135 (comment) ?

I'm interested in Build Tools. 140 or 141?

AppVeyor uses Microsoft (R) Build Engine version 14.0.25420.1, MSVC 19.0.24215.1. What do you mean?

It is very strange.

I don't know how to proceed here. To summarize, it seems as if you are using the exact compiler version as we are doing on AppVeyor. Could you make sure that you run the exact same commands as here?

The problem was solved by disabling the CRL in the compiler settings

Thanks for checking back!

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Compile error. Unable convert form nullptr to nullptr&& #1135

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Compile error. Unable convert form nullptr to nullptr&& #1135

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nlohmann commented on Jun 17, 2018

kirill-782 commented on Jun 17, 2018

nlohmann commented on Jun 17, 2018

kirill-782 commented on Jun 17, 2018

nlohmann commented on Jun 17, 2018

kirill-782 commented on Jun 17, 2018

nlohmann commented on Jun 18, 2018

kirill-782 commented on Jun 20, 2018

nlohmann commented on Jun 20, 2018

nlohmann commented on Jun 20, 2018

nlohmann commented on Jun 26, 2018

kirill-782 commented on Jun 26, 2018

nlohmann commented on Jun 26, 2018

kirill-782 commented on Jun 27, 2018

nlohmann commented on Jul 9, 2018

kirill-782 commented on Jul 10, 2018

nlohmann commented on Jul 10, 2018

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